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https://issues.apache.org/jira/browse/SOLR-6138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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HuangTongwen updated SOLR-6138:
-------------------------------

    Summary: Solr ERROR RecoveryStrategy Recovery failed   (was: Solr core load 
exception)

> Solr ERROR RecoveryStrategy Recovery failed 
> --------------------------------------------
>
>                 Key: SOLR-6138
>                 URL: https://issues.apache.org/jira/browse/SOLR-6138
>             Project: Solr
>          Issue Type: Bug
>          Components: clients - java
>    Affects Versions: 4.6, 4.7.1
>         Environment: ubuntu 12.04
> memery 20G
>            Reporter: HuangTongwen
>              Labels: test
>   Original Estimate: 840h
>  Remaining Estimate: 840h
>
> We want to enrich our search ability by solr.We do an exercise for test that 
> how many cores in one machine solr cores can support.
> We find we can create more than 2000 cores without datas in one machine.But 
> when we create cores with data ,we just can create about 1000 cores,after 
> more t han 1000 cores,we meet many errors like following I will apend it .If 
> you have meets the same or similar problem,please tell me.
> I would be grateful if you could help me.
> Hear are some errors:
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:43:29      WARN    SolrResourceLoader      Can't find (or read) directory 
> to add to classloader: /non/existent/dir/yields/warning (resolved as: 
> /non/existent/dir/yields/warning).
> 09:46:15      ERROR   ShardLeaderElectionContext      There was a problem 
> trying to register as the 
> leader:org.apache.zookeeper.KeeperException$NodeExistsException: 
> KeeperErrorCode = NodeExists for /collections/ctest.test.3521/leaders/shard1
> 09:46:15      WARN    ElectionContext         cancelElection did not find 
> election node to remove
> 09:46:16      WARN    RecoveryStrategy        Stopping recovery for 
> zkNodeName=core_node1core=ctest.test.3521
> 09:46:17      ERROR   RecoveryStrategy        Error while trying to recover. 
> core=ctest.test.3521:org.apache.solr.common.SolrException: No registered 
> leader was found,​ collection:ctest.test.3521 slice:shard1
> 09:46:17      ERROR   RecoveryStrategy        Recovery failed - trying 
> again... (0) core=ctest.test.3521
> 09:46:17      ERROR   RecoveryStrategy        Recovery failed - interrupted. 
> core=ctest.test.3521
> 09:46:17      ERROR   RecoveryStrategy        Recovery failed - I give up. 
> core=ctest.test.3521
> 09:46:18      WARN    RecoveryStrategy        Stopping recovery for 
> zkNodeName=core_node1core=ctest.test.3521
> 10:01:58      ERROR   SolrCore        org.apache.solr.common.SolrException: 
> Error handling 'status' action
> 10:01:58      ERROR   SolrDispatchFilter      
> null:org.apache.solr.common.SolrException: Error handling 'status' action
> 10:15:59      ERROR   ZkController    Error getting leader from zk
> 10:15:59      ERROR   ZkController    Error registering 
> SolrCore:org.apache.solr.common.SolrException: Error getting leader from zk 
> for shard shard1
> 10:16:18      ERROR   SolrCore        org.apache.solr.common.SolrException: 
> Error handling 'status' action
> 10:16:18      ERROR   SolrDispatchFilter      
> null:org.apache.solr.common.SolrException: Error handling 'status' action



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